If I see the same Pokemon that I have caught before, should I catch it again? (and use up some Poke Balls)
2 Answers
The only way to evolve is through candies. you receive candies catching pokemon that you already have (and its evolution branch), hatching eggs or transfering them to the proffesor. so if you catch a lot, you can evolve the ones with highest CP
Also, you win XP to level up your trainer
-
You also win some Stardust, that you need to level up your pokemon. Jul 20, 2016 at 14:46
If you ever want to evolve and train that type of Pokemon, then yes, you should be catching them all.